Worm gears

Mode

Tool

Tool set

Modes for The Symbol Insertion tool

Worm Gears

Machine Components

Multiple worm and worm gear tools share the same position on the tool set. Click and hold the mouse on the visible tool to open the Pop-out tools list and select the desired tool.

To insert a worm gear:

Click the tool and mode.

Click to place the object, and click again to set the rotation. The first time you use the tool in a file, a properties dialog box opens. Set the default parameters. The parameters can be edited later from the Object Info palette.

 

Parameter

Description

Circular Pitch

Enter the circular pitch

Number of Teeth

Enter the number of teeth

Pitch Diameter (Ref.)

Displays the pitch diameter of the gear, based on the pitch and number of teeth

Pressure Angle (deg.)

Select the pressure angle in degrees

Number of Starts (Worm)

Select the number of starts of the worm

Pitch Dia (Worm)

Specify the worm pitch diameter

Tooth Profile

Select the type of tooth profile

Gear_Wviews.png 

Face Width

Enter the width of the gear face

Draw Recess

(2D only)

Select Draw Recess to draw a recessed web, and specify the 2D parameters

Web Thickness

Enter the web thickness

Recess Diameter

Enter the recess diameter

Recess Corner Radius

Specify the recess corner radius

Recess Fillet Radius

Indicate the recess fillet radius

Draw Hub

(2D only)

Draws a hub

Hub Diameter

Enter the hub diameter

Hub Projection (Left/Right)

Specify the amount of projection for the hub on both the left and the right; a negative value indicates that the hub face is recessed

Hub Corner Radius

Enter the hub corner radius

Hub Fillet Radius

Enter the hub fillet radius

Draw Bore

(2D only)

Draws a bore

Bore Diameter

(2D and 3D)

Enter the bore diameter

Keyway

If a keyway is present, select the square, rectangular, or custom size. The square and rectangular selections apply the ASME-recommended size based on the bore diameter.

Width/Height

For custom keyway sizes, enter the width and height values of the keyway

Web Configuration

(2D only)

Select the gear configuration and then specify the 2D parameters, if any. When Holes is selected, hole size can be specified as a percentage or diameter value.

Gear_Wconfig.png 

Number

Indicate the number of holes or spokes for the gear (does not apply to Plain web configurations)

Size (10–100%)

For Holes (Percent) and Spokes web configurations, enter the percentage of the recess opening occupied by the holes or spokes

Center Distance

When Holes is selected for the web configuration, specify the distance between the hole centers

Hole Diameter

When Holes is selected for the web configuration, indicate the size of the holes

View

(2D only)

Select the 2D view

Gear_WView.png 

Show Center Lines

(2D only)

Draws the gear with center lines

Worms

 

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